Add code-shortcode.md

exampleSite/content/blog/code-shortcode.md

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+---
+categories: [paige]
+date: "2023-01-06"
+description: Demonstration of the code shortcode.
+tags: [figures, shortcodes]
+title: Code Shortcode
+---
+
+Code:
+
+```go-text-template
+{{</* paige/code */>}}
+c = 'c = %r; print(c %% c)'; print(c % c)
+{{</* /paige/code */>}}
+```
+
+Result:
+
+{{< paige/code >}}
+c = 'c = %r; print(c %% c)'; print(c % c)
+{{< /paige/code >}}
+
+---
+
+```go-text-template
+{{</* paige/code lang="python" caption="Python quine" */>}}
+c = 'c = %r; print(c %% c)'; print(c % c)
+{{</* /paige/code */>}}
+```
+
+Result:
+
+{{< paige/code lang="python" caption="Python quine" >}}
+c = 'c = %r; print(c %% c)'; print(c % c)
+{{< /paige/code >}}